S
M
T
W
T
F
S
30
96°
71°
31
96°
70°
1
95°
74°
2
96°
71°
3
94°
72°
4
89°
71°
5
93°
72°
6
94°
73°
7
95°
73°
8
94°
72°
9
94°
72°
10
93°
71°
11
93°
72°
12
92°
70°
13
93°
67°
14
86°
65°
15
84°
65°
16
87°
66°
17
90°
69°
18
90°
68°
19
84°
67°
20
85°
68°
21
91°
69°
22
90°
68°
23
89°
62°
24
90°
61°
25
81°
61°
26
84°
59°
27
83°
58°
28
Hist. Avg.
85°
61°
29
Hist. Avg.
84°
61°
30
Hist. Avg.
84°
60°
1
Hist. Avg.
84°
60°
2
Hist. Avg.
83°
60°
3
Hist. Avg.
83°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Rowlett
Rowlett's September 2026 forecast shows daily high temperatures ranging from 81° to 96°, with overnight lows between 58° and 74°. The average high for September is 90° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Rowlett. See also: October | November | December.
